Jww fix depreciation warnings

[iEv0lv3]

Description :: User Story

This PR resolves some of the pytest deprecation warnings related to aiohttp. It appears that some fixes have been merged into the main branch of aiohttp, however they are not available in a release at this point:

aio-libs/aiohttp#4477

The primary issue was creating a ClientSession as follows:

session = aiohttp.ClientSession()

The depreciation warnings stated that the ClientSession should be created within an async function, and the code has been updated to reflect that:

async def fetch_endpoint():
    async with aiohttp.ClientSession() as client:
        response = await fetch_people(client, company_id)
        
        return response

This changes how a single endpoint is called, and arguably is less convenient than the old method for reusability. Based on the issues thread posted above it appears that the depreciation warnings could be resolved in the next aiohttp update.

Type of Change

• New Feature
• Bug Fix
• Refactor
• Breaking Change
• Testing

Environment and Dependencies

• Packages Added
• Packages Updated
• Packages Removed
• No Changes

Details:

Pull Request Notes

Add any notes here.

Pytest Results and Coverage

All tests pass and normalized test coverage is 100%.

---------- coverage: platform darwin, python 3.8.2-final-0 -----------
Name                                Stmts   Miss  Cover   Missing
-----------------------------------------------------------------
tap_zenefits/__init__.py                1      0   100%
tap_zenefits/helpers_dandelion.py      24      0   100%
tap_zenefits/zenefits.py               48      6    88%   49-51, 56-58
-----------------------------------------------------------------
TOTAL                                  73      6    92%

[iEv0lv3]

All tests pass and normalized test coverage is 100%. Merging.